# MK Battery ES5-12FR · Electric wheelchair battery 12V 5Ah

![MK Battery ES5-12FR · Electric wheelchair battery 12V 5Ah](https://bateriasonline.es/3502-home_default/mk-battery-es5-12fr.jpg)

> MK Battery ES5-12FR: 5 Ah electric wheelchair battery, 89.9×70.1×106.9 mm, AGM. Equivalent to Long WP5-12E and Kronobat ES5-12. Ask for a no-obligation quote.

**Category:** [Electric wheelchair batteries](https://bateriasonline.es/en/electric-wheelchair-batteries) → [MK Battery](https://bateriasonline.es/en/mk-batteries)

- **Canonical URL**: https://bateriasonline.es/en/mk-battery-es5-12fr
- **Language**: en
- **Brand**: MK Battery
- **Reference**: BOL-MK-ES5-12FR
- **MPN**: ES5-12FR
- **Last updated**: 2026-11-06

## Technical specifications

| Feature | Value |
|---|---|
| Brand | MK Battery |
| Range | MK AGM |
| Application | Electric wheelchairs |
| Technology | AGM |
| Voltage | 12 V |
| Capacity | 5 Ah |
| Length | 89.9 mm |
| Width | 70.1 mm |
| Height | 106.9 mm |
| Weight | 1.9 kg |

## Quick description

The MK Battery ES5-12FR is an electric wheelchair battery with 12 V and 5 Ah, measuring 89.9 × 70.1 × 106.9 mm.

## Description

## The MK Battery ES5-12FR at a glance

The MK Battery ES5-12FR is made for powered wheelchairs. The ES5-12FR is fitted in pairs: two 12 V batteries in series give the chair's 24 V.
The ES5-12FR belongs to the MK Battery MK AGM range. [See all MK Battery batteries](https://bateriasonline.es/en/mk-batteries)

## AGM technology in the ES5-12FR

Inside, the ES5-12FR has glass fibre separators (AGM) that hold the electrolyte. It is fitted in cars with advanced Start-Stop and in deep-cycle equipment.

## Equivalents and alternatives to the MK Battery ES5-12FR

Other AGM batteries that fit the ES5-12FR's tray with the same polarity: an AGM can only be replaced by another AGM.

| Model | Technology | Capacity | Dimensions (mm) |
|---|---|---|---|
| Long WP5-12E | AGM | 5 Ah | 90 × 70 × 107 |
| Kronobat ES5-12 | AGM | 5 Ah | 90 × 70 × 109 |
| MK Battery ES5-12 | AGM | 5 Ah | 89.9 × 70.1 × 106.9 |
| MK Battery ES5-12 T2 | AGM | 5 Ah | 89.9 × 70.1 × 106.9 |
| MK Battery ES5-12FR T2 | AGM | 5 Ah | 89.9 × 70.1 × 106.9 |
| MK Battery ES5-12SA | AGM | 5 Ah | 89.9 × 70.1 × 106.9 |

## Part numbers and codes for the MK Battery ES5-12FR

Shops, garages and catalogues identify the ES5-12FR with these codes:

| Commercial reference | ES5-12FR |
|---|---|
| Not to be confused with | MK Battery ES7-12FR (7.2 Ah), MK Battery ES9-12FR (9 Ah) |

## Before ordering the ES5-12FR, check this

- Capacity of the ES5-12FR: 5 Ah; the same as your current battery or slightly more is fine.
- Measure the space: the ES5-12FR takes up 89.9 × 70.1 × 106.9 mm.

## Frequently asked questions about the MK Battery ES5-12FR

### How much does the MK Battery ES5-12FR weigh?

1.9 kg, with 5 Ah of capacity.

### Which battery is equivalent to the MK Battery ES5-12FR?

Only other AGM batteries with its dimensions and polarity: Long WP5-12E, Kronobat ES5-12 and MK Battery ES5-12. Neither an EFB nor a conventional battery replaces the ES5-12FR.

### Do I have to replace both batteries at once?

Yes. Wheelchairs fit two batteries in series, and a new one next to a worn one becomes unbalanced and lasts much less.

## Keep comparing: alternatives to the ES5-12FR

- [Other electric wheelchair batteries](https://bateriasonline.es/en/electric-wheelchair-batteries)
- [More MK Battery models](https://bateriasonline.es/en/mk-batteries)
- [Long WP5-12E](https://bateriasonline.es/en/long-wp5-12e) · 5 Ah, 90×70×107 mm
- [Kronobat ES5-12](https://bateriasonline.es/en/kronobat-es5-12) · 5 Ah, 90×70×109 mm

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*bateriasonline.es — Batteries and accessories · 2026-11-11*